Chemicals, plastics and rubber industries

Relative conductances of alkaneselenolate and alkanethiolate monolayers on Au{111}

Article Abstract:

The electronic properties of alkanethiolates and alkaneselenolates self-assembled monolayers on Au{111} were quantitatively compared. Simultaneously acquired apparent tunneling barrier height (ATBH) and scanning tunneling microscopy (STM) images reveal that alkanethiolates molecules have a lower barrier to tunneling, and therefore a higher conductance than alkaneselenolates of the same alkyl chain length.

Ordered local domain structures of decaneselenolate and dodecaneselenolate monolayers on Au{111}

Article Abstract:

The packing and arrangement of decaneselenolate and dodecaneselenolate monolayers on Au{111} is demonstrated through scanning tunneling microscopy (STM) imaging and structural modeling. The two phases of these monolayers consists of a densely packed distorted hexagonal lattice incommensurate to the underlying gold substrate, and a commensurate linear missing-row structure.

Phase separation within a binary self-assembled monolayer on Au {111} driven by an amide-containing alkanethiol

Article Abstract:

Control and manipulation of the molecular-scale structures of SAMs that enroot to the rational design of new and functional devices are described. SAM formation is a complex interplay between kinetics and thermodynamics that is the observation of short-range phase separation is evidence that enthalpic interactions are important in determining film structure.